Pan type oil gasifying burner



Jan. 11, 1949. A PALKO 2,458,630

PAN TYPE OIL GASIFYING BURNER Inventor izdrew joa/@ f- @Maa/@2% ,MLM v Jan. Il, 1949. A. PALKO 2,458,630

- PAN TYPE OIL GASIFYING BURNER md sept. 2e. 1945 2 sheets-sheet 2 i /g J6 6 I hlentor '1.1.'. 'III'.'IA

lll/l Jzdrew JOeZoM B, @Mm

Patented Jan. 1l, 1949 UNITED STAT-ES PATENT OFFICE 2,458,630 PAN TYPE OIL GASIFYING BURNER Andrew PalkofSpring:Vallen-N. Y. Application September 26, 1945, Serial No. 618,641

(ci. s- 53) 3 Claims. 1

The present invention relates to new and useful improvements in pan type oil gasifying burners and has for its primary object to provide a burner unit adapted for eiciently vaporizing and feeding vaporized fuel to the combustion chamber of the burner.

A further object is to provide a burner unit of simple and practical construction, which is reliable in performance, relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages will presently appear when the following description and claims are read with reference to the accompanying drawings in which:

Figure 1 is a side elevational view of the burner installed in a furnace, i t

Figure 2 is a top plan view of the burner with the furnace shown in section,

Figure 3 is an enlarged sectional view of the needle valve for the fuel supply line,

Figure 4 is an enlarged transverse sectional view of the lower or vaporizing chamber of the burner unit, taken on the line 4--4 of Figure 1 and drawn to a larger scale,

Figure 5 is a vertical, transversesectional view thereof, taken on the line 5 5 of Figure lIl,

Figures 6 and '7 are fragmentary sectional views taken substantially on the lines 6 6 and '1 -'I of Figure 4, and

Figure 8 is a side elevational view of the burner block.

Referring now to the drawings in detail, wherein, for the purpose of illustration, I have disclosed a preferred embodimentof the invention, the numeral 5 designates a furnace or boiler of conventional construction having an oil burner unit designated generally at 6 mounted in the lower portion thereof. v

The burner unit 5 is of substantially open pan construction and is secured on top of a disk 'I of insulation material by means of a bolt 8, the disk having an electric heating coil 9 mounted in its surface belowthe bottom of the lburner unit 6, as shown to advantage in Figure 5 of the drawing.

An electric igniter, o-r electrode Ill is connected with the heating coil 9 toian automatic "'s'witch Il of conventional construction to which is also connected a manually controlled switch I2, the automatic switch being controlled by a thermostat I3 leading therefrom to the burner unit 6.

Also connected to the automatic switch II is a solenoid-operated valve I4 positioned in a fuel line I5 leading from a liquid fuel supply tank I6 to the burner. Positioned in the fuel line between the solenoid valve I4 and the kburner is a threadedly adjustable needle valve I1. .l

Also connected in the same circuit withv the solenoid valve I4 is a motor-driven fan I8 having an air pipe I 9 connected to its outlet side and leading into the furnace 5 to one side of the burner 6.

The burner 6 is constructed with an inner annular wall 2U' and an outer annular wall 2l spaced from each other for the greater portion of the circumference of the burner, as indicated in Figure 4 of the drawing, lto provide a vapor chamber 22 between the inner and outer walls of the burner. n y n The air pipe I9 communicates with an intake end 23a of an elongated air chamber 23 formed at one side of the burner 6 to extend circumferentially thereof and which isv separated at said intake end from the vapor chamber 22by means of a wall 24. Theother end 23h of the air chamber 23 opens directly into the vapor chamber 22 to admit air thereto. Y

Inwardly of the vair chamber 23, the inner and otuer Walls 20 and 2| form they sides of an arcuate fuel and air mixing chamber 25 having its 'ends closed by end walls 26 and 21, the end wall 426 being adjacent the intake end 23a of the air chamber 23 and provided with an opening 28 above its bottom porti-on to admity airinto the fuel and air mixing chamber 25. The end wall 2K1 `of the fuel and air mixing chamber 2.5 is also provided with a plurality of openings or ports V29, by means'of which mixed vaporized fuel and air are discharged from the mixing chamber 25 into the vapor chamber 22.y v

The fuel pipe I5 enters the fuel and air mixing chamber 25 adjacent the end wall 26, l

Positioned in the bottom of the burner 6 and surrounding the bolt 8 is a burner sleeve 3l! hav-.- ing vertically extending, circumferentially spaced slots 3| therein, the upper edge of the sleeve being formed with an upwardly inclined, outwardly projecting ring 32 having its outer edges bearing against the inner wall 20 of the burner.

A spider designated generally at 33 includes a hub portion 34 surroundingthebolt 8 and from which separator plates 35 projectl radially, the separator plates 35 extending downwardly throughout the height of the sleeve 3l) and outwardly tol the inner wall 20 above said ring 32.

Supported on the upper edge of the spider 33 is a burner block 36 of suitable material having radial slots 31 therein extending vertically therethrough.l

The inner wall 20 is formed with an opening 38 adjacent the Wall 24 to admit vapor from the chamber 22 into a lower vapor chamber 39 formed by the inner wall 20 and the ring 32 below the ring 32.

A spiral baffle 40 is connected at one end to the inner wall 2U adjacent the opening 38 and extends into the lower vapor chamber 39 and partly surrounds the sleeve 38 and is connected at its other end thereto.

Accordingly, in the operation of the burner, the manual control switch I2 is closed and automatic switch Il will then energize the electric heating element 9 and igniter I8. When the burner has become thoroughly heated the thermostat I3 will cause switch Il to open solenoid valve I4 and start fan I8 to admit fuel and air to the burner.

Fuel will enter the fuel and air mixing chamber 25 and become immediately vaporized and will pass out of said mixing chamber 25 into the vapor chamber 22 and travel around the burner between the inner and outer walls 28 and "I and through the opening 38 into the lower vapor chamber 39`and then through the openings 3| into the sleeve 30, where it is separated by the plates 35 and directed radially above the ring 32 and upwardly through the slots 3l in the burner 'block 36 to be ignited by the [electrode lil and burned iin the burner above the block 36. Automatic switch Il' will then de-energize the electric heating element 9 Aand electrode I0 and the flame from burnerA block 38 will continue to heat inner annularwall' 20 so that liquid fuel will continue vaporization and operation of burner.

In View of the foregoing description taken in conjunction with thel accompanying drawings, it is believed that a clear understanding of the construction, operation and advantages, of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though I have herein shown and described a preferred embodiment of my invention that the same is susceptible to certain changes fully comprehended by the spirit of the invention as hereindescribed and the scope of the appended claims.

What I claim is:

1. An oil burner comprising an open substantially circular pan formed with a vaporized fuel and air mixing chamber therein, and a vapor chamber with which said mixing chamber ,communicates, means for feeding liquid fuel into said mixing chamber, means for feeding air under pressure into said mixing chamber to form a mixture with the vaporized fuel therein and force the mixture under pressure out of said mixing chamber and into the vapor chamber, means for preheating the vapor chamber to preheat the mixture therein, a sleeve upstanding in said pan in the center thereof and provided with inlet apertures, therein, means for directing the preheated mixture lfrom said vapor chamber into said sleeve including a spiral bame, a circular burner block supported in the pan above the sleeve and having radial slots therein,

and plates extending out of said sleeve to the block for directing mixture rising out of said sleeve to the slots in said block.

2. An oil burner comprising an open substantially circular pan formed with a vaporized fuel and air mixing chamber therein, and a vapor chamber with which said mixing chamber communicates, means for feeding liquid fuel into said mixing chamber, means for feeding air under pressure into said mixing chamber to form a mixture with the vaporized fuel therein and force the mixture under pressure out of said mixing chamber and into the vapor chamber, means for preheating the vapor chamber to preheat the mixture therein, a sleeve upstanding in said pan in the center thereof and provided with inlet apertures therein, means for directing the preheated mixture from said vapor chamber into said sleeve including a spiral baille, a circular burner block supported in the pan above the sleeve' and having radial slots therein, and means between said sleeve and block for directing mixture rising out of said sleeve to the slots in said block.

3. An oil burner comprising an open substantially circular pan formed with a vaporized fuel and air mixing chamber therein, and a vapor chamber with which said mixing chamber communicates, means for feeding liquid fuel into said mixing chamber, means for feeding air under Apressure into said mixing chamber to form a mixture with the vaporized fuel therein and force the mixture under pressure out of said mixing chamber and into the vapor chamber, means for preheating the vapor chamber t0 Preheat the mixture therein, a sleeve upstanding in said pan in the center thereof and provided with inlet apertures therein, means for directing the preheated mixture from said vapor chamber into said sleeve including a spiral baffle, a circular burner block supported in the pan above the sleeve and having radial slots therein, and plates extending out of said sleeve to the block for directing mixture rising out of said sleeve to the slots in said block, said pan being provided with an air cham- -ber at one side thereof into which air is fed by said lair feeding means and from which air discharges into said vapor chamber.

ANDREW PALKO.

REFERENCES CITED The following references are of record in the me of this patent:

UNITED STATES PATENTS Number Name Date 781,922 Thomson Feb. 7, 1905 1,574,545 Bear Feb. 23, 1926 1,674,282 Fletcher June 19, 1928 1,674,283 Fletcher June 19, 1928 1,677,447 Higgins et al. July 17, 1828 1,862,910 Schutz June 14, 1932 2,069,960 La Pointe Feb. 9, 1938 2,173,115 Hutto Sept. 19, 1939 FOREIGN PATENTS Number Country Date 545,957 Great Britain June 19, 1942 

